The Incubus/Succubus Dragon Emperor/Empress
(" " speach/portal talk) (bold sacred gears)
I don't own Highschool DXD it belongs to Ichiei Ishibumi
All people in Kouh academy now that Iris is a big pervert but there's one thing people don't know about her is why she was so perverted. Some people have called her a demon and succubus just to try and make sense of why she is so perverted but little did they know they hit the nail right on the head, Iris was the descendant of the Incubus and Succubus king and Queen. It was thought at the time her parents were killed that the king and queen didn't have a child and so after she killed them in a blind rage and simultaneously unlocking her scared gear making her the red dragon emperor/empress. She was taken in by the newly kinged Sirzech lucifer and raised as Sirzech's and Grayfia's own daugther, all they new was that she was a rare breed of Succubus/Incubus having both male and female reproductive organs untill the time Rias Gremory and Sona Sitri were born. A few weeks after Rias and Sona were born Iris Gremory (they adopted her making her a Gremory) went and told Sirsezh, Grayfia and Serafall the three people she trusted the most in hell that she was the daughter of the former incubus and succubus king and Queen. She was taking a big risk because incubus and succubus were now to be power hungry they could get power by a few ways but the one most used was sex and if they considered her a threat they would kill her for sure or bind her so she would have to do what the devil king said. Sirsezh, Grayfia and Serafall were shocked that their longtime friend was Succubus and Incubus royalty and they new the risk she was taking because of her heritage, then they realised why she was so strong not only from having the boosted gear but also being born from a union between the Incubus and Succubus king and Queen ranked 10th strongest in the supernatural world. They said to Iris they needed to talk in private about the subject and she would go home and stay their untill called for, they went over all the facts they new her kind could be power hungry if they weren't trained to control their nature but they knew her for over 150 years and knew she wouldn't be power hungry. They all agreed to keep this a serect until Iris was happy to come out about it so they called for and she came back ready to run she knew she could take on a devil king but not two and one on par with them, she relaxed at what they said but they would take measures if needed to stop her. She was happy that her friends accepted her for who she is and after that things got better between them because Serafall had developed a crush on her and now that Iris had told them everthing she was happy to have a relationship with her but it was kept a secret because to the rest of Hell she was just a Succubus.
Over the years Rias and Sona were growing up Iris played the role of a loving older sister, with Rias peerage she helped them all over come thier hatred for thier power's and Yumi's obsession to kill excaliber users, Akeno, Govia and Koneko used thier powers because of Iris helping them. For Koneko it was found out that Kuroka didn't go mad with power but was framed by her master's family when they were trying to take his power. Kuroka joined Iris peerage as thank for getting her and Koneko back to being sister's and helped her sister with training. Kuroka fell in love with Iris even after she found out how she was she loved her and having the strong genes would make their kids very strong.
Iris and Kuroka wanted to explore the worlds so they left when Rias and Sona were 11 and said they would come back when they were in highschool.